ecore-drm: Don't free an output on unplug

Summary: We should not be freeing an output when it gets unplugged (as
it may get replugged). Just disable rendering on that output

@fix

Signed-off-by: Chris Michael <cp.michael@samsung.com>

src/lib/ecore_drm/ecore_drm_output.c

@@ -710,7 +710,6 @@ next:
                {
                   disconnects &= ~(1 << output->conn_id);
                   _ecore_drm_output_event_send(output, EINA_FALSE);
-                  ecore_drm_output_free(output);
                }
           }
      }